Sand-trap



J. M. HOOD.

SAND TRAP.

APPLICATION FILED Nov. 29, 1919.

1,388,040, PatentedAug 16,1921.

UNITEDSTA TIE-S VW'AITENT OFFICE-.1

JAMESIM. noon, or RANGER, TEXAS.

slam-TRAP- Lesaoaoi T0 allwhom it may concern:

Be it known that 1, JAMES .Hoon, a citizen of the United States, residing. at Ranger, in the county of Eastland and'State of Texas, have "invented certain .new' and useful Improvements, in Sand-Traps, of which 'the following is'a specification.

This invention relates generally t'oisand 3 ;i.plura -11ty.,of transverse part tions, one-of which 1s shown. and designated by the m traps, and more particularlytodevices for preventing accumulation of sand in irrigation canals andditches- 'The'princip'al object jofthe invention is to provide meansfwhereby sand isremoved aue tomatically' from irrigation canals- .and ditches through the medium of water flow and pressure. v.

Another object of the invention is to provide a-suitable conduit whereby sand be removed from an irrigation canal and ditch and carried to some point at a distance therefrom. v p I A still further object oithe'inventio'n isto construct. in conjunction .with the improved sand hoppers an auxiliary water pipe contained therein and adapted for clearing the conduit of any sand which might'settle in it.

Other improvements and novel ,details' in the constructionI and arrangement of the.

various partsjof; the sand trap will be,

brought' outmorein detail indthe'j description to follow, which, for clear understanding of the invention should be considered in connection with the accompanying drawings.

forming a part of the/specification, and wherein'is disclosed for thepurpose of illustration a convenient and satisfactory; embodiment of the invention. J f

In the drawings: I

Figure 1 is a cross sectional elevation of an irrigation canal or ditch having my invention installed therein. V

Fig. 2 is a detail cross sectional view of my invention per se.

Fig. 3 isa detailed view of a section of'the sand hopper and watersupply pipe.

Fig. 4 is a detail view of the valveoperating mechanism.

Like characters of reference designate like,

or similar parts throughout the several views. 7 l V As illustrated in Fig. 1 of the drawing the letter .A designates a canal or irrigation ditch, the bottom ofwhich is excavated to receive my invention which is'desi'gned to lie flush therewith in order that sand moved Specification of Letters Patent. Patented Aug, 16-, 192 1, Application file d Noveinber 29 -1919. Serial No. 341,346.

along the bottom by the flow of water will beintercepted and disposed of. I

Referring particularly to Fig. 2 the casing 1, which is preferably rectangular in configuration and of a size depending upon the breadth of the canal orditch, is provided with a series of compartments or chambers generally designated byQ and separated by meral 3. In order to prevent the ingress of large objects such-as stonesto thecasing .a wire netting'orscreen 4: is mounted to cover the whole, open portion thereof. Mounted ineach of the chambers 2 is a substantially V shaped trough having sides 5 and a'bottom 5, the sides 5 havingformed on their upper edges flanges Gprovided with openings7' through which suitable securing means, such as; screws :or nails, may be passed to"attachthe'trough to the edgesof thefcasing and partitions. ,Attention is in-Z vited to the fact that the same means for securing the nettingmay be utilized for se curing the flanges to the casing and parti-v tions.-, Mounted on the alternate side'of each of th troughs and extending from the upper edge to a point slightly spaced from the bottorn thereof are supplemental water conduits generally designated by 8 each having a somewhat cylindrical depressed 'centralj portion9 prjovidedwith flanges 10 for securement to, the sides 5.

. A drain pipefll is provided with service connections 12 extending through openings in the bottom of the casingwco'mmunicating with each of the. compartments. The said connections 12 are slightly spaced from the bottom of the trough andare adapted-to "register with openings 13 formed therein.

The upper termination of each service connection is provided with an annular flange 3 and provided with openings for receiving chains 17 carried by the valve lever 18 which extends upward above the surface of the canal or ditch.

In operation the sand carried down by the flow of water in the canal or ditch passes over the sand trap and upon settling is car ried into the troughs 2. A continual flow of water through the troughs 2, service connections 12, the drain pipe 11 causes the sand to pass down to the drain pipe 11 and 011' to some point at a distance from the canal where it is depositech Sand, which'accumulates in the troughs during periods when the slide valve 15 is maintained in closed position, settles into a compact mass which frequently does not readily flow through the ports 13 when the valve is opened. For this reason the supplemental conduits 8 are provided which take water from the ditch at a point above the level of thesand in the trap and discharge it at a point in close proximity to the ports 13. The relatively small quantity of sand lying intermediate the 'lower terminal ofeach supplemental water conduit 8 and the ports 13 is quickly cut by the'current of water passing through said conduit and is carried into the drain pipe 11. The body of sand gradually settles in thetrap and,mixing with the water supplied by the supplemental water conduit is entirely carried oi'tby the drain pipe. It is to be noted further of the arrangement of the conduits 8 that the upper ends of the same are always open to the inflow thereto of the water in theditch, and that the lower end of the same is disposed immediately adja'cent the outlet from the trough, so that the weight of the water above the trough naturally tends to accelerate the flow clownward thereof. Furthermore, when the valves 15 are open and sand and water is flowing through the pipe line 11, a suction is created at the lower end of the conduits 8 which additionally accelerates such downfiow through thelatter. i

As drainage canals or ditches are generally arranged in series the water from one ditch or canal may be carried by the drain pipe 11 to another canal on a lower level and intermediate the two canals a point of deposit may be disposed so that none of the Water may be lost'while the sand and silt 'may be. effectually separated therefrom.

IVhen it is desired to place the device out '7 of operation the valve lever 18 is turned consequently moving the valve 11 to close the opening 13 and severing communication between the trough and the drain pipe 11.

From the foregoing, description taken in connection with the accompanying drawings, it is thought that a clear and comprehensive understanding of the construction, operation and advantages of my invention may be had,

and while I have shown and described the device as embodying a specific structure, I desire that it be understood that such changes may be made in said structure as do not depart from the spirit and scope of the invention as claimed.

What I claim is:

1. A sand trap comprising a casing disposed in the bottom of a ditch, partitions in the casing forming compartments, means in the compartments for trapping sand and silt, and means communicating with said first named means for carrying off the sand and silt so trapped. t

2. A sand'trap comprising a casing disposed in the bottom of a ditch, partitions in the casing forming compartments, V shaped troughs in the compartments for trapping sand and silt, means communicating with said troughs for carrying off sand and silt so trapped, and means for preventing clogging of said first named means;

3. A sandtrap comprising a casing disposed in the bottom of a ditch, partitions in the casing forming compartments, V shaped troughs in the compartments for trapping sand and silt, means communicating with said troughs for carrying ofi sand and silt therefrom by water flow and pressure, and a water conduit in the trough for preventing e,

the casing, partitions in the casing forming compartments, V shaped troughs in the com-f partments for trapping sand and silt, a drain pipe communicating with said troughs for carrying oft sand and silt through water flow and pressure, means for severing communication between the drain pipe and troughs, and auxiliary Water conduits in the troughs for preventing clogging of the drain pipe. i

5. A sand trap comprising a trough disposed on the bed of a body of water, means for conveying the'trapped sand and silt from said trough, and means disposed in said trough to prevent clogging of said means.

In testimony whereof, I affix my signature hereto.

JAMES M. HOOD. 

